Header dilemma

OK. Thank god I am such a cheap skate that I held off on ordering headers. I just noticed something kinda important. I was all set on the Hedman full length headers for my big block. Then I happen to notice (thanks to summit) the cylinder head port shape is ROUND. Guess what shape I need? SQUARE.

All the headers I looked at on Summit are round. Anyone know anybody that makes square port headers for a K5 with a big block?

I have the set that came off the camaro but I don't think they're going to fit unfortunately. I may have to come up with a way to make them fit from the looks of it.

Trying desparately to avoid custom headers (see first complete sentence in post) and trying to keep it under 250-300 bucks.

So what is the tube diameter of the round ports you can get for cheap? Be a pretty harsh transition, but if the round ones are big enough diameter so you aren't creating a blockage to flow, I wouldn't worry about it.

Here's another catch I didn't realize... The exhaust port has been raised .5 over stock. The size is 1.560" X 1.900". I'd need a 2" primary with the .5 offset. I think i'm going to go have the set I have for the camaro fitted.

EDIT: or does having the port raised mean they moved the bolts with it? just causing issues with the spark plugs? Maybe i'd be ok with 2" roundies... ????

I realized yet another issue even with going to big round port headers. Stupid math. a rectangle hole 1.9" X 1.56" has a little thing called a hypontenuse. I'm going to see if I can get those camaro headers to fit. They seem like they want to. If not, i'm going to have to find someone to cut and hack them up to fit.

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